I’ve got a small plywood kinetic sculpture that includes a fixed bezel and a “spinner” mounted concentrically with an axle and bearings.
I’d like to motorize it but not using a conventional motor, belts, gears or anything else.
My thought is to turn it into a brushless motor using rare earth magnets in the spinner and electromagnets sunk into the bezel. This would be a nice, silent drive mechanism.
Problem is, I’ve never done such a thing. Another problem is that mounting opportunities are best along the top and bottom of the bezel - in about 25 degree arcs centered at the 12 and 6 o’clock positions. Every brushless motor I’ve seen has its magnets and electromagnets evenly spaced around the circumference of the rotor and housing.
Ideas?
